Low Vitamin D Status and Suicide: A Case-Control Study of Active Duty Military Service Members Umhau, John C. ; George, David T. ; Heaney, Robert P. ; Lewis, Michael D. ; Ursano, Robert J. ; Heilig, Markus ; Hibbeln, Joseph R. ; Schwandt, Melanie L. Abstract Publication: PLoS ONE Pub Date: January 2013 DOI: 10.1371/journal.pone.0051543 Bibcode: 2013PLoSO...851543U